Team SAGE

Members
Overall Objectives
Scientific Foundations
Application Domains
Software
New Results
Other Grants and Activities
Dissemination
Bibliography

Section: Other Grants and Activities

National Grants

ANDRA

Participants : Caroline de Dieuleveult, Jocelyne Erhel.

Contract with Andra

time: three years from October 2005.

This contract is related to C. de Dieuleveult's PhD thesis. The subject is reactive transport, with application to nuclear waste disposal [59] , [26] . For more details, see sections 6.2.3 , 4.1 .

GdR MOMAS - Numerical models for nuclear waste disposal

Participants : Caroline de Dieuleveult, Jocelyne Erhel.

See http://momas.univ-lyon1.fr/

The working group MOMAS is led now by A. Ern from CERMICS and includes many partners from CNRS, INRIA, universities, CEA, ANDRA, EDF and BRGM. It covers many subjects related to mathematical modeling and numerical simulations for nuclear waste disposal problems. We participate in the project entitled ``Numerical and mathematical methods for reactive transport in porous media'' [26] , [24] . See sections 6.2.3 , 4.1 .

HydroGrid - Multiphysics models in hydrogeology

Participants : Édouard Canot, Caroline de Dieuleveult, Jocelyne Erhel.

HydroGrid: Coupling codes for flow and solute transport in geological media: a software component approach.

ACI GRID grant, No. 102C07270021319

time: from October 2002 until February 2006

Coordinator: M. Kern, Estime Inria team

Participants: Paris Irisa team, Estime Inria team, Sage Irisa team, IMFS (U. of Strasbourg), CAREN (U. of Rennes 1).

See http://www-rocq.inria.fr/~kern/HydroGrid/HydroGrid.html

The final report of the project was presented in February. We have worked on three applications: saltwater intrusion [23] , reactive transport [26] , [24] and 3D network of fractures [20] . See sections 6.2.3 , 6.4.3 . We have developed parallel software components and run experiments on the grid at Irisa [60] . Wa have also developed the software GRIDMESH for generating a regular mesh [55] . See section 5.3 .

Grid'5000-Rennes

Participants : Guy Antoine Atenekeng Kahou, Étienne Bresciani, Édouard Canot, Laura Grigori, Jocelyne Erhel, Bernard Philippe.

ACI GRID program GRID'5000, two projects entitled Grille Rennes

time: three years from 2003 and three years from 2004. Coordinator : Y. Jégou, Paris team, INRIA-Rennes.

Our parallel algorithms for solving linear systems were tested on the clusters of the Grid at Rennes [20] , [21] , [25] , [47] , [46] , [50] , [42] . See sections 6.1.4 , 6.1.3 and 6.1.1 .

Software platform for numerical simulations in hydrogeoloy

Participants : Étienne Bresciani, Édouard Canot, Frédéric Guyomarc'h, Jocelyne Erhel.

BQR from the University of Rennes 1

Participants : Sage team and Geosciences department.

time: 2006.

We aim at developing a platform, called Hyrolab, integrating our different modules for simulating flow and solute transport in porous and fractured media [22] . We have organized the software in well-defined components, tested the simulations on both Windows and Linux systems, created a project in the Inria Gforge and created a subversion repository. See sections 3.2 , 4.1 , 5.6 , 6.4.2 , 6.4.3 .

IFREMER contract

Participants : Édouard Canot, Jocelyne Erhel, Samih Zein.

IFREMER contracts, No 06/2 210 099

Partners : Irisa, IFREMER

Title : Numerical model for the propagation of elastic waves

time : from January 2006 until March 2007.

This work is done in the context of the ``Contrat de Plan Etat Région Bretagne 2000-2006'' (signed in October 2002 – it contains five parts and is spread out over the period 2002-2007), for the development of new geophysical exploration means.

The first objective of this study was to develop a software simulating the propagation of elastic waves in the seawater and in the underwater geophysical layers. We have used the code FLUSOL from the INRIA-team ONDES. The second objective is to study inverse methods to find layer properties in the ground, only from acoustic measurements recorded near the sea surface by a ship. The reflection of the wave at each interface allows us to collect information in the fluid and, via appropriate numerical methods, to determine the density and the elasticity of each layer constituting the solid sub-marine soil [57] , [54] , [53] , [58] . See sections 4.1 , 6.3.1 .


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